Late 70's stock 350's were either 160 or 165 hp and about 265 lb/ft of torque. 305 was about 11 hp/forums/images/icons/grin.gif

Best way to tell is to check the block numbers and check em on www.mortec.com
The numbers are on a machined pad on the passenger side where the block and the cylinder head meet. Without dis-assembly it's visible behind and below the alternator. I used a toothbrush and some degreaser to clean the area and then a mag light to see better.../forums/images/icons/smile.gif

Yes, thanks tRustyK5. I've got my block number from when I swapped out intake manifolds. I was having trouble finding a good place to run the number so the link helped!
But I was looking for the Torque/Horsepower line graph that shows the differences at different RPM's.

Desktop dyno or something similar would do that for you...I think the torque and horsepower curves are pretty similar for both the 305 and 350 in stock trim...the 305 being equally less powerful through the range. Both would have a decent amount of off idle torque and fall off fairly low in the RPM band. IIRC hp peaked at about 4000 rpm.

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